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The membrane aeration bioreactor (MABR) isn't really that new, the term first being introduced around 20 years ago. The original work was based on a pure oxygen fed technology, which attracted the interest of gas suppliers like Air Products.
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Surely, ceramic membranes are just too damned expensive, aren’t they? Well, as someone who’s dabbled in cost analysis every once in a while, let’s just run through the process for operating expenditure (OPEX).
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With infinite time and resources we can model just about anything. But we only have limited amounts of these resources, so matching expectations and potential is of utmost importance, and matching our thinking to reality is a cumbersome balancing act.
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Will MBR modelling help? Clearly, the gap between practitioners and academics has to be bridged first. The fine detail of interruptions in MBR process operation needs to be chronicled, crystallised and conveyed by practitioners and understood by modellers.
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As the largest water−wastewater−waste trade show globally, Munich’s IFAT (30 May−3 June 2016) was certainly a sizeable affair. The Messe München venue, handily placed at the end of the U2 metro line, comprises 16 aircraft hanger-sized halls.
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Berghof's Innovation Day features speakers from the industrial sector − Steve Goodwin and Farid Turan have years of experience in the design, implementation and operation of sMBRs. Prof Heiner Strathmann will also speak and I’ll be making up the numbers.
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What can an alga do that a regular micro-organism can’t, specifically when it comes to treating wastewater? Well, for one thing algae don’t need air; pumping air is an expensive business, such that anaerobic treatment also seems to have taken off of late.
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As at March 2016, Beijing Origin Water had 20 installations in China rated at 100 MLD or more, and 35 of more than 50 MLD. That puts the average capacity of these 35 plants at more than 110 MLD. That’s a whole lotta fibre.
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Who were the pioneers of immersed hollow fibre MBRs? Andrew Benedek of Zenon took a novel idea and made it into a fully-fledged and widely employed commercial product, and not overlooking Professor Kazuo Yamamoto and his team at Tokyo University.
Read articleA 2015 analysis courtesy of Ecologix in Taiwan deconstructed the MBR technology of a small-scale plant into its constituent parts. When the components of MBR technology were considered, it is the membrane which made up the lion’s share of the capital cost.
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There doesn't appear to be a single aspect or component of MBR technology that has not been declared innovative by someone: the membrane material, membrane module, membrane aeration, frame, overall design − you name it, somebody somewhere has innovated it.
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The internet is awash with pie charts showing that 50−55% of energy costs at a classical municipal WWTW are linked to aeration. The percentage is slightly larger for MBRs because of the requirement for membrane air scouring as well as process aeration.
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